comedi_to_pcmcia_dev(9)

💅 comedi_to_pcmcia_dev(9) — like, the Kernel API Manual era 🎀

okay bestie, buckle up, because this one is a tiny little helper function in the kernel and it's honestly so straightforward it's giving "one-line baddie" energy ✨ This page lives in the Kernel API Manual, section 9 (iykyk), and it's all about digging the PCMCIA device out of a COMEDI device. Let's go 🦋

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✨ NAME ✨

comedi_to_pcmcia_dev — returns the PCMCIA device that's attached to a COMEDI device. That's it. That's the whole job. 💅

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🌸 SYNOPSIS 🌸

struct pcmcia_device * comedi_to_pcmcia_dev (struct comedi_device *dev
);

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🎀 ARGUMENTS 🎀

• dev — your COMEDI device. literally the one you're handing over so it can spill where its hardware friend lives 🫶

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👑 DESCRIPTION 👑

so here's the vibe: assuming dev->hw_dev is non-NULL, we just trust that it's pointing to a struct device that's embedded inside a struct pcmcia_device. That's the whole assumption. No cap, that's it. 🧚

(it's specifically a struct device embedded in a struct pcmcia_device, which is the classic container-of situation — the function is just doing the lookup for you so you don't have to think about it 💀)

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🔥 RETURN 🔥

• if dev->hw_dev is non-NULL → you get the attached PCMCIA device 🎉
• if dev->hw_dev is NULL → you get NULL. nothing. nada. the void. 🙈

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⭐ SEE ALSO ⭐

all the siblings in ./drivers/comedi/comedi_pcmcia.c — go say hi to the whole family bestie 💖

• comedi_pcmcia_enable(9)
• comedi_pcmcia_disable(9)
• comedi_pcmcia_auto_config(9)
• comedi_pcmcia_auto_unconfig(9)
• comedi_pcmcia_driver_register(9)
• comedi_pcmcia_driver_unregister(9)

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and that's the page, bestie 🌈 this iconic little entry comes from ./drivers/comedi and it's dated October 2026 — so yeah, mark your calendars, the future is now, mwah 💜💅✨